Anesthesia
Conditions
Brief summary
Oxygenation with high-flow nasal cannula with 100% oxygen have now been evaluated in a number of studies and the data are convincing. The THRIVE technique is able to oxygenate patients safely and vital parameters has been shown to be stable. But it is of great importance to evaluate this new concept regarding other potential negative physiological aspects such as lung atelectasis and inflammatory stress response before implementing it into clinical practice.
Interventions
Oxygenation during apnea using transversal humidified oxygen
Ventilation during the procedure is governed by an endotracheal tube in the trachea and mechanical ventilation
Sponsors
Study design
Eligibility
Inclusion criteria
1. Adults, \>18 years old. 2. ENT-surgery where apnea is of benefit for the surgeon (eg. intraoral or laryngeal surgery). 3. Capable of understanding the study information and sign the written consent.
Exclusion criteria
1. ASA\>2 2. NYHA \>2 3. Pacemaker or ICD. 4. BMI \>35 5. Pregnancy 6. Manifest cardiac failure or coronary disease 7. Severe gastrointestinal reflux. 8. Neuromuscular disorder
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Electrical impedans tomography | baseline, intraoperative, 2 hours after start of intervention | Changes in lung volumes |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Difference in Endtidal and arterial carbon dioxide partial pressure in the end of the procedure | max 30 minutes after start of intervention | Difference in Endtidal and arterial carbon dioxide partial pressure in the end of the procedure |
| Increase in arterial carbon dioxide during the apnea | max 30 minutes after start of intervention | Measurement of arterial blood gases and here arterial carbon dioxide |
Countries
Sweden